We have a premature baby, in which plaster casts do not work due to the delicacy and we were skeptical etc. for other articles with color. The set is super easy to use, does not leave marks and has no harmful substances. The ICU was so excited that they now want to recommend the set to all parents. The first impression was perfect from the Fußfalten, phalanges etc. come out visibly, it blurs anything and everything you can scan or frame well. Since the set of 2 towels and 4 papers there, we have even more for later, when our daughter is bigger, material left. Our conclusion: Again and again.